I am using Raspberry Pi Pico W with RP2040 microcontroller chip. I was looking to connect the raspberry pi pico w's GP0 SDA, SCL pins to connect to send data to the MAX7219 pins. My issue currently is the environment setting up. It seems like in the CMAKELists.txt I had to include a lot of: I did that because it would say: fatal error: pico/gpio.h: No such file or directory; it seems like a very insufficient solution.
I was using pico-sdk_2.0.0 but then I started running even more errors where it would error within the pico-sdk files saying:
note: 'uint32_t' is defined in header '<cstdint>'; did you forget to '#include <cstdint>'?
I thought within the CMAKELists.txt file it would prevent errors like that happening. I cmake and make out of my build directory and the libraries like pico-sdk and the display library are under lib.
I came across a different post where the user went down to pico-sdk_1.5.0. After running cmake then make with that included pico_sdk I don't get any errors within the included my included pico_sdk library but now only in the library header I included for MAX7219 (https://github.com/wayoda/LedControl) which I am not entirely sure it is compatible with it as its for Arduino but I figured that might be the pins it communicates from but the addresses on the display might be the same. My end goal is to communicate to the MAX7219 display with some values.
Now with pico-sdk_1.5.0 I get only a single error:
fatal error: pico/stdlib.h: No such file or directory
3 | #include "pico/stdlib.h"
This doesn't make much sense as I have included that header in the LedControl.h. So I am still confused as why these headers are giving me problems, I thought CMAKE would resolve it.
My CMAKELists.txt looks as follows:If you've made it to the bottom of this post I appreciate any help / feedback you can provide for this environment issue.
Code:
set(ALL_INCLUDE_DIRS set(ALL_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/lib/LedControl ${CMAKE_SOURCE_DIR}/lib/MAX7219 ${PICO_SDK_PATH}/src/common/pico_stdlib_headers/include ${PICO_SDK_PATH}/src/boards/include/boards ${PICO_SDK_PATH}/...I was using pico-sdk_2.0.0 but then I started running even more errors where it would error within the pico-sdk files saying:
note: 'uint32_t' is defined in header '<cstdint>'; did you forget to '#include <cstdint>'?
I thought within the CMAKELists.txt file it would prevent errors like that happening. I cmake and make out of my build directory and the libraries like pico-sdk and the display library are under lib.
I came across a different post where the user went down to pico-sdk_1.5.0. After running cmake then make with that included pico_sdk I don't get any errors within the included my included pico_sdk library but now only in the library header I included for MAX7219 (https://github.com/wayoda/LedControl) which I am not entirely sure it is compatible with it as its for Arduino but I figured that might be the pins it communicates from but the addresses on the display might be the same. My end goal is to communicate to the MAX7219 display with some values.
Now with pico-sdk_1.5.0 I get only a single error:
fatal error: pico/stdlib.h: No such file or directory
3 | #include "pico/stdlib.h"
This doesn't make much sense as I have included that header in the LedControl.h. So I am still confused as why these headers are giving me problems, I thought CMAKE would resolve it.
My CMAKELists.txt looks as follows:
Code:
cmake_minimum_required(VERSION 3.13)set(PICO_SDK_PATH "${CMAKE_SOURCE_DIR}/lib/pico-sdk-1.5.1")# set(PICO_SDK_PATH "${CMAKE_SOURCE_DIR}/lib/pico-sdk")include("${PICO_SDK_PATH}/pico_sdk_init.cmake")# Set project nameproject(dwt_project CXX C ASM)# Set C standard to C17set(CMAKE_C_STANDARD 17)set(CMAKE_C_STANDARD_REQUIRED ON)set(CMAKE_C_EXTENSIONS OFF)# Set C++ standard to C++17set(CMAKE_CXX_STANDARD 17)set(CMAKE_CXX_STANDARD_REQUIRED ON)set(CMAKE_CXX_EXTENSIONS OFF)pico_sdk_init()# Specify the target board (Pico W) before pico-sdk is initializedset(PICO_BOARD "pico_w")# Set the platform - RPi Pico W is based on Raspberry Pi RP2040 microcontroller chipset(PICO_PLATFORM "rp2040")include("${CMAKE_SOURCE_DIR}/lib/pico-sdk-1.5.1/external/pico_sdk_import.cmake")# include("${CMAKE_SOURCE_DIR}/lib/pico-sdk/external/pico_sdk_import.cmake")# Set the SDK path relative to the project directory#No need to set pico as global environmental variable to use across projectsmessage("CMAKE_SOURCE_DIR is set to: ${CMAKE_SOURCE_DIR}")message("PICO_SDK_PATH is set to: ${PICO_SDK_PATH}")# Specify the cross-compilation toolchain for ARM Cortex-M0+ (CMake for pico-sdk)# # Use the toolchain file# set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR})# Add -MD flag to generate dependency files (.d files)set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MD")set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -MD")# Set HOMBREW path to be linked to librariesset(HOMEBREW_PATH /opt/homebrew)message("Homebrew Path: ${HOMEBREW_PATH}")# Use the toolchain file from the Pico SDK# set(CMAKE_TOOLCHAIN_FILE "${PICO_SDK_PATH}/cmake/preload/toolchains/pico_arm_cortex_m0plus_gcc.cmake")message("PROJECT_NAME is set to: ${PROJECT_NAME}")# Initialize the Pico SDK - should be called after the project is created# pico_sdk_init()# Create the LedControl library (MAX7219 control)add_library(LedControlLib STATIC lib/MAX7219/LedControl.cpp)# Add the main executableadd_executable( ${PROJECT_NAME} #dwt.cpp src/RPi_PicoW_to_MAX7219_Display.cpp)set(ALL_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/lib/LedControl ${CMAKE_SOURCE_DIR}/lib/MAX7219 ${PICO_SDK_PATH}/src/common/pico_stdlib_headers/include ${PICO_SDK_PATH}/src/boards/include/boards ${PICO_SDK_PATH}/src/host/pico_stdio/include ${PICO_SDK_PATH}/src/common/pico_time/include ${PICO_SDK_PATH}/src/rp2_common/hardware_timer/include ${PICO_SDK_PATH}/src/rp2_common/hardware_gpio/include ${PICO_SDK_PATH}/src/rp2040/hardware_structs/include ${PICO_SDK_PATH}/src/rp2_common/hardware_base/include ${PICO_SDK_PATH}/src/rp2040/hardware_regs/include ${PICO_SDK_PATH}/src/rp2350/hardware_regs/include ${PICO_SDK_PATH}/src/rp2350/hardware_structs/include ${PICO_SDK_PATH}/src/rp2_common/hardware_irq/include ${PICO_SDK_PATH}/src/rp2040/pico_platform/include ${PICO_SDK_PATH}/src/rp2_common/hardware_uart/include ${PICO_SDK_PATH}/src/rp2_common/hardware_resets/include ${PICO_SDK_PATH}/src/rp2_common/hardware_spi/include ${HOMEBREW_PATH}/Cellar/gcc/14.2.0/include/c++/14)# Include directories for LedControlLib# target_include_directories(pico_stdlib INTERFACE ${ALL_INCLUDE_DIRS})target_include_directories(LedControlLib PUBLIC ${ALL_INCLUDE_DIRS})# Include directories for the main project executable (PROJECT_NAME)# target_include_directories(${PROJECT_NAME} PUBLIC ${ALL_INCLUDE_DIRS})# Link the standard Pico library, I2C hardware library, SPI hardware library, and LedControlLibtarget_link_libraries(${PROJECT_NAME} pico_stdlib # Standard Pico library (GPIO, sleep, time functions) hardware_gpio # Library for GPIO control hardware_spi # Library for SPI control (used for MAX7219) hardware_i2c # If you're using I2C as well LedControlLib # Your custom LedControl library created by add_library() ico_cyw43_arch_none)# Create UF2, BIN, and HEX files for your projectpico_add_extra_outputs(${PROJECT_NAME})Statistics: Posted by rossjohn07 — Thu Jan 16, 2025 8:46 pm